Water cooler



FIG. 1 is a perspective view of a water cooler showing my new design;

FIG. 2 is a front elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a side elevational view thereof;

FIG. 6 is a rear elevational view thereof;

FIG. 7 is a perspective view of a water cooler showing a second embodiment of my new design;

FIG. 8 is a front elevational view thereof;

FIG. 9 is a top plan view thereof;

FIG. 10 is a bottom plan view thereof;

FIG. 11 is a rear elevational view thereof; and,

FIG. 12 is a side elevational view thereof.

The broken lines in the drawing are included for the purpose of illustration and form no part of the claimed design. 

The ornamental design for a water cooler, as shown and described. 